Finding the Fourth Proportional to 919,985.56, 1,268,689.98 and 597,782.68
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Solution
The fourth proportional to 919,985.56, 1,268,689.98 and 597,782.68 is: 824,361.74
Step by Step Solution
- Step 1: Write the proportion equation
919,985.56 : 1,268,689.98 = 597,782.68 : x - Step 2: Convert to fraction form
919,985.56/1,268,689.98 = 597,782.68/x - Step 3: Cross multiply
919,985.56x = 1,268,689.98 × 597,782.68 - Step 4: Simplify right side
919,985.56x = 758,400,896,333.55 - Step 5: Solve for x
x = 758,400,896,333.55/919,985.56 - Step 6: Final answer
x = 824,361.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.